JPS5385351A - Device for protecting power system from low frequency resonant current - Google Patents

Device for protecting power system from low frequency resonant current

Info

Publication number
JPS5385351A
JPS5385351A JP30778A JP30778A JPS5385351A JP S5385351 A JPS5385351 A JP S5385351A JP 30778 A JP30778 A JP 30778A JP 30778 A JP30778 A JP 30778A JP S5385351 A JPS5385351 A JP S5385351A
Authority
JP
Japan
Prior art keywords
low frequency
power system
resonant current
frequency resonant
protecting power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP30778A
Other languages
Japanese (ja)
Other versions
JPS5646701B2 (en
Inventor
Shii Sun San
Rii Chiyaachi Rarii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of JPS5385351A publication Critical patent/JPS5385351A/en
Publication of JPS5646701B2 publication Critical patent/JPS5646701B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/46—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to frequency deviations

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Rectifiers (AREA)
JP30778A 1977-01-06 1978-01-06 Device for protecting power system from low frequency resonant current Granted JPS5385351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/757,178 US4106071A (en) 1977-01-06 1977-01-06 Apparatus for protection against subsynchronous currents in a power system

Publications (2)

Publication Number Publication Date
JPS5385351A true JPS5385351A (en) 1978-07-27
JPS5646701B2 JPS5646701B2 (en) 1981-11-05

Family

ID=25046719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30778A Granted JPS5385351A (en) 1977-01-06 1978-01-06 Device for protecting power system from low frequency resonant current

Country Status (7)

Country Link
US (1) US4106071A (en)
JP (1) JPS5385351A (en)
AU (1) AU513242B2 (en)
GB (1) GB1599132A (en)
IN (1) IN149273B (en)
SE (1) SE421573B (en)
ZA (1) ZA777498B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH615537A5 (en) * 1977-03-01 1980-01-31 Bbc Brown Boveri & Cie
US4218718A (en) * 1978-11-08 1980-08-19 Westinghouse Electric Corp. Protective relay apparatus
US4208687A (en) * 1978-11-08 1980-06-17 Westinghouse Electric Corp. Protective relay apparatus
US4470091A (en) * 1982-10-20 1984-09-04 Westinghouse Electric Corp. Productive relay apparatus for protection from sub-synchronous current oscillations in a power system
US4607217A (en) * 1983-09-28 1986-08-19 Southern California Edison Company, Inc. Subsynchronous resonance detection
US5005008A (en) * 1989-04-20 1991-04-02 Hewlett Packard Company Method and apparatus for providing thermodynamic protection of a driver circuit used in an in-circuit tester
DE19841543A1 (en) * 1998-09-11 2000-04-06 Schwerionenforsch Gmbh Device and method for monitoring a signal
US6774614B2 (en) 2002-02-27 2004-08-10 General Electric Company Method and apparatus for detecting current
US7085662B2 (en) * 2004-07-30 2006-08-01 Siemens Energy & Automation, Inc. Power quality indicator
CN107508307B (en) * 2017-09-12 2020-07-03 国网宁夏电力公司电力科学研究院 Active disturbance rejection direct current additional damping control method for suppressing subsynchronous oscillation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3558986A (en) * 1968-12-02 1971-01-26 Us Interior Tieline swing relay

Also Published As

Publication number Publication date
IN149273B (en) 1981-10-17
ZA777498B (en) 1978-10-25
SE7714958L (en) 1978-07-07
JPS5646701B2 (en) 1981-11-05
AU513242B2 (en) 1980-11-20
US4106071A (en) 1978-08-08
SE421573B (en) 1982-01-04
AU3213678A (en) 1979-07-12
GB1599132A (en) 1981-09-30

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